Cover for a container



FIG. 1 is a top plan view of a cover for a container, showing my new design;

FIG. 2 is a right side elevational view thereof, the left side view being a mirror image thereof;

FIG. 3 is a fragmentary top plan view thereof taken on line 3--3 of FIG. 1, with the tab member in an extended position; and

FIG. 4 is a bottom plan view thereof with the tab in an extended position. 

The ornamental design for a cover for a container, substantially as shown and described. 